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49201930 = 254920193
BaseRepresentation
bin1011101110110…
…0001100001010
310102120201100201
42323230030022
5100043430210
64514322414
71135131601
oct273541412
9112521321
1049201930
1125856158
121458940a
13a26908b
14676aa38
1544bd53a
hex2eec30a

49201930 has 8 divisors (see below), whose sum is σ = 88563492. Its totient is φ = 19680768.

The previous prime is 49201921. The next prime is 49201931. The reversal of 49201930 is 3910294.

It is a happy number.

49201930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 43204329 + 5997601 = 6573^2 + 2449^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (49201931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2460087 + ... + 2460106.

Almost surely, 249201930 is an apocalyptic number.

49201930 is a deficient number, since it is larger than the sum of its proper divisors (39361562).

49201930 is a wasteful number, since it uses less digits than its factorization.

49201930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4920200.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 49201930 is about 7014.4087420110. The cubic root of 49201930 is about 366.4325511926.

The spelling of 49201930 in words is "forty-nine million, two hundred one thousand, nine hundred thirty".

Divisors: 1 2 5 10 4920193 9840386 24600965 49201930